Explainer, Requirements Doc, or Example code: see WICG/interventions#42 for some background, and note how the proposal morphed from initially changing the behavior of allow-top-navigation to introducing a new keyword, allow-top-navigation-by-user-activation

Relevant time constraints or deadlines: Chrome is hoping to ship this in a branch that will branch March 2, so any feedback before then would be helpful.

I have read and filled out the Self-Review Questionnare on Security and Privacy. Although this touches on related areas, it's largely a strengthening of the isolation that was present before (with allow-top-navigation), and none of the questions seem directly relevant.